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Finding the Fourth Proportional to 223,711.88, 335,567.72 and 81,567.80

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Solution

The fourth proportional to 223,711.88, 335,567.72 and 81,567.80 is: 122,351.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,711.88 : 335,567.72 = 81,567.80 : x
  2. Step 2: Convert to fraction form
    223,711.88/335,567.72 = 81,567.80/x
  3. Step 3: Cross multiply
    223,711.88x = 335,567.72 × 81,567.80
  4. Step 4: Simplify right side
    223,711.88x = 27,371,520,671.42
  5. Step 5: Solve for x
    x = 27,371,520,671.42/223,711.88
  6. Step 6: Final answer
    x = 122,351.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.